/usr/share/pyshared/traitsui/null/toolkit.py is in python-traitsui 4.1.0-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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#
# Copyright (c) 2005, Enthought, Inc.
# All rights reserved.
#
# This software is provided without warranty under the terms of the BSD
# license included in enthought/LICENSE.txt and may be redistributed only
# under the conditions described in the aforementioned license. The license
# is also available online at http://www.enthought.com/licenses/BSD.txt
#
# Thanks for using Enthought open source!
#
# Author: David C. Morrill
# Date: 02/14/2005
#
#------------------------------------------------------------------------------
""" Defines the concrete implementations of the traits Toolkit interface for
the 'null' (do nothing) user interface toolkit.
"""
#-------------------------------------------------------------------------------
# Imports:
#-------------------------------------------------------------------------------
from __future__ import absolute_import
from ..toolkit import Toolkit
from ..editor_factory import EditorFactory
#-------------------------------------------------------------------------------
# Constants:
#-------------------------------------------------------------------------------
# Create a dummy singleton editor factory:
null_editor_factory = EditorFactory()
#-------------------------------------------------------------------------------
# 'GUIToolkit' class:
#-------------------------------------------------------------------------------
class GUIToolkit ( Toolkit ):
#---------------------------------------------------------------------------
# GUI toolkit dependent trait definitions:
#---------------------------------------------------------------------------
def color_trait ( self, *args, **traits ):
from . import color_trait as ct
return ct.NullColor( *args, **traits )
def rgb_color_trait ( self, *args, **traits ):
from . import rgb_color_trait as rgbct
return rgbct.RGBColor( *args, **traits )
def font_trait ( self, *args, **traits ):
from . import font_trait as ft
return ft.NullFont( *args, **traits )
def kiva_font_trait ( self, *args, **traits ):
from . import font_trait as ft
return ft.NullFont( *args, **traits )
def constants ( self, *args, **traits ):
constants = {'WindowColor': ( 236 / 255.0, 233 / 255.0, 216 / 255.0, 1.0 )}
return constants
#---------------------------------------------------------------------------
# 'EditorFactory' factory methods:
#---------------------------------------------------------------------------
def __getattribute__(self, attr):
""" Return a method that returns null_editor_factory for any request to
an unimplemented ``*_editor()`` method.
This must be __getattribute__ to make sure that we override the
definitions in the superclass which raise NotImplementedError.
"""
if attr.endswith('_editor'):
return lambda *args, **kwds: null_editor_factory
else:
return super(GUIToolkit, self).__getattribute__(attr)
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